At this moment the telephone in the C.O.'s office suddenly burst out,

"Ting-a-ling-ling!"

"Yes, who's there?" asked the Major sharply.

"Advanced Headquarters, Fourth Army. Are you the R.F.C.?"

"Yes--Squadron-Commander speaking from No. 10 Aerodrome."

"Right. News is just to hand by field telephone that three Zeppelins have passed overhead making for the Channel. We have wired the coast stations and the R N.A.S. to look after them, and if possible to bring them down. There is evidently a raid in progress. What do you think you can do in the matter?" asked the officer at the other end.

"Hold on just a few seconds, sir!" replied the Major. Then, turning round to Dastral, he repeated the conversation briefly, and said,

"What do you suggest?"

"Just this, sir," replied the pilot. "Our plan to destroy the sheds is well forward, and we hoped to carry it out in three or four days. We know exactly where the place is----"

"Yes, yes, go on. The staff officer is waiting at the other end of the line," blurted out the C.O.